package com.rd.student.jiaji.class4.suyan.zrrd.day15;

import java.util.Arrays;

public class Testarr {
    public static void main(String[] args) {
        int[]arr={4,5,6,7,8,9,3};
        System.arraycopy(arr,4,arr,3,3);
        System.out.println(Arrays.toString(arr));
    }
}
